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The law of equal opportunities or unintended consequences? The impact of unisex risk assessment in consumer credit

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Original languageEnglish
Pages (from-to)1287-1311
JournalJournal of the Royal Statistical Society: Series A
Volume182
Issue number4
Early online date1 Aug 2019
DOIs
Publication statusPublished - 25 Oct 2019

Abstract

Gender is prohibited from use in decision-making in many countries. This does not necessarily benefit females in situations of automated algorithmic decisions, e.g. when a credit scoring model is used as a decision tool for loan granting. By analysing a unique proprietary dataset on car loans from an EU bank, this paper shows that Gender as a variable in a credit scoring model is statistically significant. Its removal does not alter the predictive accuracy of the model, yet the proportions of accepted women/men depend on whether Gender is included. The paper explores the association between predictors in the model with Gender, to demonstrate the omitted variable bias and how other variables proxy for Gender. It points to inconsistencies of the existing regulations in the context of automated decision-making.

    Research areas

  • credit scoring, gender, algorithmic decision-making, statistical discrimination

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